* unix/configure: Regen.

	* unix/tcl.m4: Update from Tcl.
	* win/configure: Regen.
	* win/tcl.m4: Update from Tcl.

2 files changed, 234 insertions, 138 deletions

diff --git a/unix/configure b/unix/configure
index 21c4e19..5f92576 100755
--- a/unix/configure
+++ b/unix/configure
@@ -537,7 +537,7 @@ else
 fi
 
 
-# RCS: @(#) $Id: configure.in,v 1.57 2001/04/25 20:52:48 mdejong Exp $
+# RCS: @(#) $Id: configure.in,v 1.58 2001/04/25 21:51:06 mdejong Exp $
 
 TK_VERSION=8.4
 TK_MAJOR_VERSION=8
@@ -1214,6 +1214,7 @@ done
 	TCL_THREADS=0
 	echo "$ac_t""no (default)" 1>&6
     fi
+    
 
 
 #------------------------------------------------------------------------------
@@ -1224,18 +1225,18 @@ done
 if test -z "$no_pipe"; then
 if test -n "$GCC"; then
   echo $ac_n "checking if the compiler understands -pipe""... $ac_c" 1>&6
-echo "configure:1228: checking if the compiler understands -pipe" >&5
+echo "configure:1229: checking if the compiler understands -pipe" >&5
   OLDCC="$CC"  
   CC="$CC -pipe"
   cat > conftest.$ac_ext <<EOF
-#line 1232 "configure"
+#line 1233 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1239: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1240: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 else
@@ -1270,7 +1271,7 @@ if test "${with_tcl+set}" = set; then
 fi
 
 	echo $ac_n "checking for Tcl configuration""... $ac_c" 1>&6
-echo "configure:1274: checking for Tcl configuration" >&5
+echo "configure:1275: checking for Tcl configuration" >&5
 	if eval "test \"`echo '$''{'ac_cv_c_tclconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1340,7 +1341,7 @@ fi
 
 
     echo $ac_n "checking for existence of $TCL_BIN_DIR/tclConfig.sh""... $ac_c" 1>&6
-echo "configure:1344: checking for existence of $TCL_BIN_DIR/tclConfig.sh" >&5
+echo "configure:1345: checking for existence of $TCL_BIN_DIR/tclConfig.sh" >&5
 
     if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
         echo "$ac_t""loading" 1>&6
@@ -1371,7 +1372,7 @@ echo "configure:1344: checking for existence of $TCL_BIN_DIR/tclConfig.sh" >&5
     # Step 0.a: Enable 64 bit support?
 
     echo $ac_n "checking if 64bit support is requested""... $ac_c" 1>&6
-echo "configure:1375: checking if 64bit support is requested" >&5
+echo "configure:1376: checking if 64bit support is requested" >&5
     # Check whether --enable-64bit or --disable-64bit was given.
 if test "${enable_64bit+set}" = set; then
   enableval="$enable_64bit"
@@ -1391,7 +1392,7 @@ fi
     # Step 0.b: Enable Solaris 64 bit VIS support?
 
     echo $ac_n "checking if 64bit Sparc VIS support is requested""... $ac_c" 1>&6
-echo "configure:1395: checking if 64bit Sparc VIS support is requested" >&5
+echo "configure:1396: checking if 64bit Sparc VIS support is requested" >&5
     # Check whether --enable-64bit-vis or --disable-64bit-vis was given.
 if test "${enable_64bit_vis+set}" = set; then
   enableval="$enable_64bit_vis"
@@ -1415,7 +1416,7 @@ fi
     # there are a few systems, like Next, where this doesn't work.
 
     echo $ac_n "checking system version (for dynamic loading)""... $ac_c" 1>&6
-echo "configure:1419: checking system version (for dynamic loading)" >&5
+echo "configure:1420: checking system version (for dynamic loading)" >&5
     if test -f /usr/lib/NextStep/software_version; then
 	system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
     else
@@ -1438,7 +1439,7 @@ echo "configure:1419: checking system version (for dynamic loading)" >&5
     fi
 
     echo $ac_n "checking if gcc is being used""... $ac_c" 1>&6
-echo "configure:1442: checking if gcc is being used" >&5
+echo "configure:1443: checking if gcc is being used" >&5
     if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
 	using_gcc="yes"
     else
@@ -1451,7 +1452,7 @@ echo "configure:1442: checking if gcc is being used" >&5
     # Linux can use either -ldl or -ldld for dynamic loading.
 
     echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:1455: checking for dlopen in -ldl" >&5
+echo "configure:1456: checking for dlopen in -ldl" >&5
 ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1459,7 +1460,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1463 "configure"
+#line 1464 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1470,7 +1471,7 @@ int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:1474: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1475: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1514,7 +1515,7 @@ fi
     TCL_EXP_FILE=""
     STLIB_LD="ar cr"
     case $system in
-	AIX-5*)
+	AIX-5.*)
 	    if test "${TCL_THREADS}" = "1" -a "$using_gcc" = "no" ; then
 		# AIX requires the _r compiler when gcc isn't being used
 		if test "${CC}" != "cc_r" ; then
@@ -1589,7 +1590,7 @@ fi
 	    # known GMT value.
 
 	    echo $ac_n "checking for gettimeofday in -lbsd""... $ac_c" 1>&6
-echo "configure:1593: checking for gettimeofday in -lbsd" >&5
+echo "configure:1594: checking for gettimeofday in -lbsd" >&5
 ac_lib_var=`echo bsd'_'gettimeofday | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1597,7 +1598,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1601 "configure"
+#line 1602 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1608,7 +1609,7 @@ int main() {
 gettimeofday()
 ; return 0; }
 EOF
-if { (eval echo configure:1612: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1613: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1670,7 +1671,7 @@ EOF
 	HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*|HP-UX-*.11.*)
 	    SHLIB_SUFFIX=".sl"
 	    echo $ac_n "checking for shl_load in -ldld""... $ac_c" 1>&6
-echo "configure:1674: checking for shl_load in -ldld" >&5
+echo "configure:1675: checking for shl_load in -ldld" >&5
 ac_lib_var=`echo dld'_'shl_load | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1678,7 +1679,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1682 "configure"
+#line 1683 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1689,7 +1690,7 @@ int main() {
 shl_load()
 ; return 0; }
 EOF
-if { (eval echo configure:1693: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1694: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1796,17 +1797,17 @@ fi
 	    else
 		ac_safe=`echo "dld.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dld.h""... $ac_c" 1>&6
-echo "configure:1800: checking for dld.h" >&5
+echo "configure:1801: checking for dld.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1805 "configure"
+#line 1806 "configure"
 #include "confdefs.h"
 #include <dld.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1810: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1811: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1861,17 +1862,17 @@ fi
 	    # Not available on all versions:  check for include file.
 	    ac_safe=`echo "dlfcn.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dlfcn.h""... $ac_c" 1>&6
-echo "configure:1865: checking for dlfcn.h" >&5
+echo "configure:1866: checking for dlfcn.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1870 "configure"
+#line 1871 "configure"
 #include "confdefs.h"
 #include <dlfcn.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1875: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1876: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1898,9 +1899,9 @@ if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
 		LDFLAGS=""
 		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 		echo $ac_n "checking for ELF""... $ac_c" 1>&6
-echo "configure:1902: checking for ELF" >&5
+echo "configure:1903: checking for ELF" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 1904 "configure"
+#line 1905 "configure"
 #include "confdefs.h"
 
 #ifdef __ELF__
@@ -2078,6 +2079,15 @@ EOF
 	    TCL_LIB_VERSIONS_OK=nodots
 	    ;;
 	SunOS-5.[0-6]*)
+
+	    # Note: If _REENTRANT isn't defined, then Solaris
+	    # won't define thread-safe library routines.
+
+	    cat >> confdefs.h <<\EOF
+#define _REENTRANT 1
+EOF
+
+
 	    SHLIB_CFLAGS="-KPIC"
 	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
 
@@ -2092,6 +2102,15 @@ EOF
 	    LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
 	    ;;
 	SunOS-5*)
+
+	    # Note: If _REENTRANT isn't defined, then Solaris
+	    # won't define thread-safe library routines.
+
+	    cat >> confdefs.h <<\EOF
+#define _REENTRANT 1
+EOF
+
+
 	    SHLIB_CFLAGS="-KPIC"
 	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
 	    LDFLAGS=""
@@ -2153,17 +2172,17 @@ EOF
 	    # that don't grok the -Bexport option.  Test that it does.
 	    hold_ldflags=$LDFLAGS
 	    echo $ac_n "checking for ld accepts -Bexport flag""... $ac_c" 1>&6
-echo "configure:2157: checking for ld accepts -Bexport flag" >&5
+echo "configure:2176: checking for ld accepts -Bexport flag" >&5
 	    LDFLAGS="${LDFLAGS} -Wl,-Bexport"
 	    cat > conftest.$ac_ext <<EOF
-#line 2160 "configure"
+#line 2179 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:2167: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2186: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   found=yes
 else
@@ -2209,9 +2228,9 @@ rm -f conftest*
 
     if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
 	echo $ac_n "checking sys/exec.h""... $ac_c" 1>&6
-echo "configure:2213: checking sys/exec.h" >&5
+echo "configure:2232: checking sys/exec.h" >&5
 	cat > conftest.$ac_ext <<EOF
-#line 2215 "configure"
+#line 2234 "configure"
 #include "confdefs.h"
 #include <sys/exec.h>
 int main() {
@@ -2229,7 +2248,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:2233: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2252: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -2247,9 +2266,9 @@ EOF
 
 	else
 	    echo $ac_n "checking a.out.h""... $ac_c" 1>&6
-echo "configure:2251: checking a.out.h" >&5
+echo "configure:2270: checking a.out.h" >&5
 	    cat > conftest.$ac_ext <<EOF
-#line 2253 "configure"
+#line 2272 "configure"
 #include "confdefs.h"
 #include <a.out.h>
 int main() {
@@ -2267,7 +2286,7 @@ int main() {
 	    
 ; return 0; }
 EOF
-if { (eval echo configure:2271: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2290: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -2285,9 +2304,9 @@ EOF
 
 	    else
 		echo $ac_n "checking sys/exec_aout.h""... $ac_c" 1>&6
-echo "configure:2289: checking sys/exec_aout.h" >&5
+echo "configure:2308: checking sys/exec_aout.h" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 2291 "configure"
+#line 2310 "configure"
 #include "confdefs.h"
 #include <sys/exec_aout.h>
 int main() {
@@ -2305,7 +2324,7 @@ int main() {
 		
 ; return 0; }
 EOF
-if { (eval echo configure:2309: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2328: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -2364,7 +2383,7 @@ fi
     if test "$DL_OBJS" != "tclLoadNone.o" ; then
 	if test "$using_gcc" = "yes" ; then
 	    case $system in
-		AIX-[1-4]*)
+		AIX-*)
 		    ;;
 		BSD/OS*)
 		    ;;
@@ -2400,7 +2419,7 @@ fi
 
 
     echo $ac_n "checking for build with symbols""... $ac_c" 1>&6
-echo "configure:2404: checking for build with symbols" >&5
+echo "configure:2423: checking for build with symbols" >&5
     # Check whether --enable-symbols or --disable-symbols was given.
 if test "${enable_symbols+set}" = set; then
   enableval="$enable_symbols"
@@ -2444,12 +2463,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for sin""... $ac_c" 1>&6
-echo "configure:2448: checking for sin" >&5
+echo "configure:2467: checking for sin" >&5
 if eval "test \"`echo '$''{'ac_cv_func_sin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2453 "configure"
+#line 2472 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char sin(); below.  */
@@ -2472,7 +2491,7 @@ sin();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2476: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2495: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_sin=yes"
 else
@@ -2493,7 +2512,7 @@ MATH_LIBS="-lm"
 fi
 
 echo $ac_n "checking for main in -lieee""... $ac_c" 1>&6
-echo "configure:2497: checking for main in -lieee" >&5
+echo "configure:2516: checking for main in -lieee" >&5
 ac_lib_var=`echo ieee'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2501,14 +2520,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lieee  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2505 "configure"
+#line 2524 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:2512: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2531: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2539,7 +2558,7 @@ fi
 libbsd=no
 if test "`uname -s`" = "AIX" ; then
     echo $ac_n "checking for gettimeofday in -lbsd""... $ac_c" 1>&6
-echo "configure:2543: checking for gettimeofday in -lbsd" >&5
+echo "configure:2562: checking for gettimeofday in -lbsd" >&5
 ac_lib_var=`echo bsd'_'gettimeofday | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2547,7 +2566,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2551 "configure"
+#line 2570 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2558,7 +2577,7 @@ int main() {
 gettimeofday()
 ; return 0; }
 EOF
-if { (eval echo configure:2562: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2581: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2589,9 +2608,9 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking stdlib.h""... $ac_c" 1>&6
-echo "configure:2593: checking stdlib.h" >&5
+echo "configure:2612: checking stdlib.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2595 "configure"
+#line 2614 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -2606,7 +2625,7 @@ fi
 rm -f conftest*
 
 cat > conftest.$ac_ext <<EOF
-#line 2610 "configure"
+#line 2629 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -2620,7 +2639,7 @@ fi
 rm -f conftest*
 
 cat > conftest.$ac_ext <<EOF
-#line 2624 "configure"
+#line 2643 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -2652,16 +2671,16 @@ echo "$ac_t""$tk_ok" 1>&6
 #--------------------------------------------------------------------
 
 echo $ac_n "checking fd_set and sys/select""... $ac_c" 1>&6
-echo "configure:2656: checking fd_set and sys/select" >&5
+echo "configure:2675: checking fd_set and sys/select" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2658 "configure"
+#line 2677 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int main() {
 fd_set readMask, writeMask;
 ; return 0; }
 EOF
-if { (eval echo configure:2665: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2684: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tk_ok=yes
 else
@@ -2673,7 +2692,7 @@ fi
 rm -f conftest*
 if test $tk_ok = no; then
     cat > conftest.$ac_ext <<EOF
-#line 2677 "configure"
+#line 2696 "configure"
 #include "confdefs.h"
 #include <sys/select.h>
 EOF
@@ -2705,12 +2724,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:2709: checking for ANSI C header files" >&5
+echo "configure:2728: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2714 "configure"
+#line 2733 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -2718,7 +2737,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2722: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2741: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2735,7 +2754,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 2739 "configure"
+#line 2758 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -2753,7 +2772,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 2757 "configure"
+#line 2776 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -2774,7 +2793,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 2778 "configure"
+#line 2797 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -2785,7 +2804,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:2789: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2808: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -2809,12 +2828,12 @@ EOF
 fi
 
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:2813: checking for mode_t" >&5
+echo "configure:2832: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2818 "configure"
+#line 2837 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2842,12 +2861,12 @@ EOF
 fi
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:2846: checking for pid_t" >&5
+echo "configure:2865: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2851 "configure"
+#line 2870 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2875,12 +2894,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:2879: checking for size_t" >&5
+echo "configure:2898: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2884 "configure"
+#line 2903 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2908,12 +2927,12 @@ EOF
 fi
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:2912: checking for uid_t in sys/types.h" >&5
+echo "configure:2931: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2917 "configure"
+#line 2936 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -2950,17 +2969,17 @@ for ac_hdr in sys/time.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2954: checking for $ac_hdr" >&5
+echo "configure:2973: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2959 "configure"
+#line 2978 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2964: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2983: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2987,12 +3006,12 @@ fi
 done
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:2991: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:3010: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2996 "configure"
+#line 3015 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -3001,7 +3020,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:3005: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3024: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -3027,16 +3046,16 @@ fi
 #-------------------------------------------
 
 echo $ac_n "checking pw_gecos in struct pwd""... $ac_c" 1>&6
-echo "configure:3031: checking pw_gecos in struct pwd" >&5
+echo "configure:3050: checking pw_gecos in struct pwd" >&5
 cat > conftest.$ac_ext <<EOF
-#line 3033 "configure"
+#line 3052 "configure"
 #include "confdefs.h"
 #include <pwd.h>
 int main() {
 struct passwd pwd; pwd.pw_gecos;
 ; return 0; }
 EOF
-if { (eval echo configure:3040: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3059: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tk_ok=yes
 else
@@ -3069,7 +3088,7 @@ fi
 # Uses ac_ vars as temps to allow command line to override cache and checks.
 # --without-x overrides everything else, but does not touch the cache.
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:3073: checking for X" >&5
+echo "configure:3092: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -3131,12 +3150,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 3135 "configure"
+#line 3154 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3140: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3159: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3205,14 +3224,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3209 "configure"
+#line 3228 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:3216: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3235: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -3302,12 +3321,12 @@ fi
     if test "$no_x" = ""; then
 	if test "$x_includes" = ""; then
 	    cat > conftest.$ac_ext <<EOF
-#line 3306 "configure"
+#line 3325 "configure"
 #include "confdefs.h"
 #include <X11/XIntrinsic.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3311: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3330: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -3327,15 +3346,15 @@ rm -f conftest*
     fi
     if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
 	echo $ac_n "checking for X11 header files""... $ac_c" 1>&6
-echo "configure:3331: checking for X11 header files" >&5
+echo "configure:3350: checking for X11 header files" >&5
 	XINCLUDES="# no special path needed"
 	cat > conftest.$ac_ext <<EOF
-#line 3334 "configure"
+#line 3353 "configure"
 #include "confdefs.h"
 #include <X11/Intrinsic.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3339: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3358: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -3371,7 +3390,7 @@ rm -f conftest*
 
     if test "$no_x" = yes; then
 	echo $ac_n "checking for X11 libraries""... $ac_c" 1>&6
-echo "configure:3375: checking for X11 libraries" >&5
+echo "configure:3394: checking for X11 libraries" >&5
 	XLIBSW=nope
 	dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
 	for i in $dirs ; do
@@ -3391,7 +3410,7 @@ echo "configure:3375: checking for X11 libraries" >&5
     fi
     if test "$XLIBSW" = nope ; then
 	echo $ac_n "checking for XCreateWindow in -lXwindow""... $ac_c" 1>&6
-echo "configure:3395: checking for XCreateWindow in -lXwindow" >&5
+echo "configure:3414: checking for XCreateWindow in -lXwindow" >&5
 ac_lib_var=`echo Xwindow'_'XCreateWindow | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3399,7 +3418,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXwindow  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3403 "configure"
+#line 3422 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3410,7 +3429,7 @@ int main() {
 XCreateWindow()
 ; return 0; }
 EOF
-if { (eval echo configure:3414: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3433: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3495,7 +3514,7 @@ esac
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for main in -lXbsd""... $ac_c" 1>&6
-echo "configure:3499: checking for main in -lXbsd" >&5
+echo "configure:3518: checking for main in -lXbsd" >&5
 ac_lib_var=`echo Xbsd'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3503,14 +3522,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3507 "configure"
+#line 3526 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:3514: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3533: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3533,12 +3552,12 @@ fi
 
 tk_checkBoth=0
 echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:3537: checking for connect" >&5
+echo "configure:3556: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3542 "configure"
+#line 3561 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -3561,7 +3580,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3565: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3584: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_connect=yes"
 else
@@ -3583,7 +3602,7 @@ fi
 
 if test "$tk_checkSocket" = 1; then
     echo $ac_n "checking for main in -lsocket""... $ac_c" 1>&6
-echo "configure:3587: checking for main in -lsocket" >&5
+echo "configure:3606: checking for main in -lsocket" >&5
 ac_lib_var=`echo socket'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3591,14 +3610,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3595 "configure"
+#line 3614 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:3602: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3621: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3624,12 +3643,12 @@ if test "$tk_checkBoth" = 1; then
     tk_oldLibs=$LIBS
     LIBS="$LIBS -lsocket -lnsl"
     echo $ac_n "checking for accept""... $ac_c" 1>&6
-echo "configure:3628: checking for accept" >&5
+echo "configure:3647: checking for accept" >&5
 if eval "test \"`echo '$''{'ac_cv_func_accept'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3633 "configure"
+#line 3652 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char accept(); below.  */
@@ -3652,7 +3671,7 @@ accept();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3656: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3675: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_accept=yes"
 else
@@ -3674,12 +3693,12 @@ fi
 
 fi
 echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:3678: checking for gethostbyname" >&5
+echo "configure:3697: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3683 "configure"
+#line 3702 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -3702,7 +3721,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3706: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3725: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -3720,7 +3739,7 @@ if eval "test \"`echo '$ac_cv_func_'gethostbyname`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for main in -lnsl""... $ac_c" 1>&6
-echo "configure:3724: checking for main in -lnsl" >&5
+echo "configure:3743: checking for main in -lnsl" >&5
 ac_lib_var=`echo nsl'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3728,14 +3747,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3732 "configure"
+#line 3751 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:3739: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3758: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3775,13 +3794,13 @@ LIBS="$LIBS$THREADS_LIBS"
 
 if test -d /usr/include/mit ; then
     echo $ac_n "checking MIT X libraries""... $ac_c" 1>&6
-echo "configure:3779: checking MIT X libraries" >&5
+echo "configure:3798: checking MIT X libraries" >&5
     tk_oldCFlags=$CFLAGS
     CFLAGS="$CFLAGS -I/usr/include/mit"
     tk_oldLibs=$LIBS
     LIBS="$LIBS -lX11-mit"
     cat > conftest.$ac_ext <<EOF
-#line 3785 "configure"
+#line 3804 "configure"
 #include "confdefs.h"
 
 	#include <X11/Xlib.h>
@@ -3792,7 +3811,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:3796: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3815: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   
 	echo "$ac_t""yes" 1>&6
@@ -3819,12 +3838,12 @@ fi
 
 MATH_LIBS=""
 echo $ac_n "checking for sin""... $ac_c" 1>&6
-echo "configure:3823: checking for sin" >&5
+echo "configure:3842: checking for sin" >&5
 if eval "test \"`echo '$''{'ac_cv_func_sin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3828 "configure"
+#line 3847 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char sin(); below.  */
@@ -3847,7 +3866,7 @@ sin();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3851: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3870: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_sin=yes"
 else
@@ -3868,7 +3887,7 @@ MATH_LIBS="-lm"
 fi
 
 echo $ac_n "checking for main in -lieee""... $ac_c" 1>&6
-echo "configure:3872: checking for main in -lieee" >&5
+echo "configure:3891: checking for main in -lieee" >&5
 ac_lib_var=`echo ieee'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3876,14 +3895,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lieee  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3880 "configure"
+#line 3899 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:3887: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3906: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3910,14 +3929,14 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether char is unsigned""... $ac_c" 1>&6
-echo "configure:3914: checking whether char is unsigned" >&5
+echo "configure:3933: checking whether char is unsigned" >&5
 if eval "test \"`echo '$''{'ac_cv_c_char_unsigned'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   if test "$GCC" = yes; then
   # GCC predefines this symbol on systems where it applies.
 cat > conftest.$ac_ext <<EOF
-#line 3921 "configure"
+#line 3940 "configure"
 #include "confdefs.h"
 #ifdef __CHAR_UNSIGNED__
   yes
@@ -3939,7 +3958,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 3943 "configure"
+#line 3962 "configure"
 #include "confdefs.h"
 /* volatile prevents gcc2 from optimizing the test away on sparcs.  */
 #if !defined(__STDC__) || __STDC__ != 1
@@ -3949,7 +3968,7 @@ main() {
   volatile char c = 255; exit(c < 0);
 }
 EOF
-if { (eval echo configure:3953: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3972: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_char_unsigned=yes
 else
@@ -3982,12 +4001,12 @@ fi
 
 
     echo $ac_n "checking for strtod""... $ac_c" 1>&6
-echo "configure:3986: checking for strtod" >&5
+echo "configure:4005: checking for strtod" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtod'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3991 "configure"
+#line 4010 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtod(); below.  */
@@ -4010,7 +4029,7 @@ strtod();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4014: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4033: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtod=yes"
 else
@@ -4032,12 +4051,12 @@ fi
 
     if test "$tcl_strtod" = 1; then
 	echo $ac_n "checking for Solaris2.4/Tru64 strtod bugs""... $ac_c" 1>&6
-echo "configure:4036: checking for Solaris2.4/Tru64 strtod bugs" >&5
+echo "configure:4055: checking for Solaris2.4/Tru64 strtod bugs" >&5
 	if test "$cross_compiling" = yes; then
   tcl_ok=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 4041 "configure"
+#line 4060 "configure"
 #include "confdefs.h"
 
 	    extern double strtod();
@@ -4057,7 +4076,7 @@ else
 		exit(0);
 	    }
 EOF
-if { (eval echo configure:4061: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_ok=1
 else
@@ -4089,7 +4108,7 @@ EOF
 
 
     echo $ac_n "checking how to build libraries""... $ac_c" 1>&6
-echo "configure:4093: checking how to build libraries" >&5
+echo "configure:4112: checking how to build libraries" >&5
     # Check whether --enable-shared or --disable-shared was given.
 if test "${enable_shared+set}" = set; then
   enableval="$enable_shared"
@@ -4179,7 +4198,7 @@ TK_SHARED_BUILD=${SHARED_BUILD}
 # Replace ${VERSION} with contents of ${TK_VERSION}
 eval "TK_STUB_LIB_FILE=libtkstub${TK_UNSHARED_LIB_SUFFIX}"
 
-# FIXME: Why don't we use MAKE_STUB_LIB from tclConfig.sh here?
+# FIXME: Should we add MAKE_STUB_LIB to tclConfig.sh ?
 MAKE_STUB_LIB="ar cr \$@ \${STUB_LIB_OBJS}"
 
 if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then
@@ -4395,6 +4414,7 @@ s%@mandir@%$mandir%g
 s%@CC@%$CC%g
 s%@RANLIB@%$RANLIB%g
 s%@CPP@%$CPP%g
+s%@TCL_THREADS@%$TCL_THREADS%g
 s%@TCL_BIN_DIR@%$TCL_BIN_DIR%g
 s%@TCL_SRC_DIR@%$TCL_SRC_DIR%g
 s%@TCL_LIB_FILE@%$TCL_LIB_FILE%g
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 172652f..5925196 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -369,6 +369,7 @@ AC_DEFUN(SC_ENABLE_THREADS, [
 	TCL_THREADS=0
 	AC_MSG_RESULT([no (default)])
     fi
+    AC_SUBST(TCL_THREADS)
 ])
 
 #------------------------------------------------------------------------
@@ -586,7 +587,7 @@ AC_DEFUN(SC_CONFIG_CFLAGS, [
     TCL_EXP_FILE=""
     STLIB_LD="ar cr"
     case $system in
-	AIX-5*)
+	AIX-5.*)
 	    if test "${TCL_THREADS}" = "1" -a "$using_gcc" = "no" ; then
 		# AIX requires the _r compiler when gcc isn't being used
 		if test "${CC}" != "cc_r" ; then
@@ -986,6 +987,12 @@ AC_DEFUN(SC_CONFIG_CFLAGS, [
 	    TCL_LIB_VERSIONS_OK=nodots
 	    ;;
 	SunOS-5.[[0-6]]*)
+
+	    # Note: If _REENTRANT isn't defined, then Solaris
+	    # won't define thread-safe library routines.
+
+	    AC_DEFINE(_REENTRANT)
+
 	    SHLIB_CFLAGS="-KPIC"
 	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
 
@@ -1000,6 +1007,12 @@ AC_DEFUN(SC_CONFIG_CFLAGS, [
 	    LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
 	    ;;
 	SunOS-5*)
+
+	    # Note: If _REENTRANT isn't defined, then Solaris
+	    # won't define thread-safe library routines.
+
+	    AC_DEFINE(_REENTRANT)
+
 	    SHLIB_CFLAGS="-KPIC"
 	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
 	    LDFLAGS=""
@@ -1185,7 +1198,7 @@ AC_DEFUN(SC_CONFIG_CFLAGS, [
     if test "$DL_OBJS" != "tclLoadNone.o" ; then
 	if test "$using_gcc" = "yes" ; then
 	    case $system in
-		AIX-[[1-4]]*)
+		AIX-*)
 		    ;;
 		BSD/OS*)
 		    ;;
@@ -1287,8 +1300,68 @@ main()
     }
     return 1;
 }], tk_ok=sgtty, tk_ok=none, tk_ok=none)
+
     if test $tk_ok = sgtty; then
 	AC_DEFINE(USE_SGTTY)
+    else
+	AC_TRY_RUN([
+#include <termios.h>
+#include <errno.h>
+
+main()
+{
+    struct termios t;
+    if (tcgetattr(0, &t) == 0
+	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+	cfsetospeed(&t, 0);
+	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
+	return 0;
+    }
+    return 1;
+}], tk_ok=termios, tk_ok=no, tk_ok=no)
+
+    if test $tk_ok = termios; then
+	AC_DEFINE(USE_TERMIOS)
+    else
+	AC_TRY_RUN([
+#include <termio.h>
+#include <errno.h>
+
+main()
+{
+    struct termio t;
+    if (ioctl(0, TCGETA, &t) == 0
+	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
+	return 0;
+    }
+    return 1;
+    }], tk_ok=termio, tk_ok=no, tk_ok=no)
+
+    if test $tk_ok = termio; then
+	AC_DEFINE(USE_TERMIO)
+    else
+	AC_TRY_RUN([
+#include <sgtty.h>
+#include <errno.h>
+
+main()
+{
+    struct sgttyb t;
+    if (ioctl(0, TIOCGETP, &t) == 0
+	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+	t.sg_ospeed = 0;
+	t.sg_flags |= ODDP | EVENP | RAW;
+	return 0;
+    }
+    return 1;
+}], tk_ok=sgtty, tk_ok=none, tk_ok=none)
+
+    if test $tk_ok = sgtty; then
+	AC_DEFINE(USE_SGTTY)
+    fi
+    fi
+    fi
     fi
     fi
     fi
@@ -1563,6 +1636,8 @@ AC_DEFUN(SC_TIME_HANDLER, [
     AC_HEADER_TIME
     AC_STRUCT_TIMEZONE
 
+    AC_CHECK_FUNCS(gmtime_r localtime_r)
+
     AC_MSG_CHECKING([tm_tzadj in struct tm])
     AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
 	    [AC_DEFINE(HAVE_TM_TZADJ)
@@ -1603,6 +1678,7 @@ AC_DEFUN(SC_TIME_HANDLER, [
 	    AC_MSG_RESULT(yes)],
 	    AC_MSG_RESULT(no))
     fi
+
 ])
 
 #--------------------------------------------------------------------